149 lines
4.4 KiB
C++
149 lines
4.4 KiB
C++
/*
|
|
* Copyright (C) 2016 Robin Gareus <robin@gareus.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
|
|
#include "ardour/analysis_graph.h"
|
|
#include "ardour/route.h"
|
|
#include "ardour/session.h"
|
|
|
|
#include "timecode/time.h"
|
|
|
|
#include "audiographer/process_context.h"
|
|
#include "audiographer/general/chunker.h"
|
|
#include "audiographer/general/interleaver.h"
|
|
#include "audiographer/general/analyser.h"
|
|
#include "audiographer/general/peak_reader.h"
|
|
|
|
#include "pbd/i18n.h"
|
|
|
|
using namespace ARDOUR;
|
|
using namespace AudioGrapher;
|
|
|
|
AnalysisGraph::AnalysisGraph (Session *s)
|
|
: _session (s)
|
|
, _max_chunksize (8192)
|
|
, _frames_read (0)
|
|
, _frames_end (0)
|
|
, _canceled (false)
|
|
{
|
|
_buf = (Sample *) malloc(sizeof(Sample) * _max_chunksize);
|
|
_mixbuf = (Sample *) malloc(sizeof(Sample) * _max_chunksize);
|
|
_gainbuf = (float *) malloc(sizeof(float) * _max_chunksize);
|
|
}
|
|
|
|
AnalysisGraph::~AnalysisGraph ()
|
|
{
|
|
free (_buf);
|
|
free (_mixbuf);
|
|
free (_gainbuf);
|
|
}
|
|
|
|
void
|
|
AnalysisGraph::analyze_region (boost::shared_ptr<AudioRegion> region)
|
|
{
|
|
interleaver.reset (new Interleaver<Sample> ());
|
|
interleaver->init (region->n_channels(), _max_chunksize);
|
|
chunker.reset (new Chunker<Sample> (_max_chunksize));
|
|
analyser.reset (new Analyser (
|
|
_session->nominal_frame_rate(),
|
|
region->n_channels(),
|
|
_max_chunksize,
|
|
region->length()));
|
|
|
|
interleaver->add_output(chunker);
|
|
chunker->add_output (analyser);
|
|
|
|
framecnt_t x = 0;
|
|
framecnt_t length = region->length();
|
|
while (x < length) {
|
|
framecnt_t chunk = std::min (_max_chunksize, length - x);
|
|
framecnt_t n = 0;
|
|
for (unsigned int channel = 0; channel < region->n_channels(); ++channel) {
|
|
memset (_buf, 0, chunk * sizeof (Sample));
|
|
n = region->read_at (_buf, _mixbuf, _gainbuf, region->position() + x, chunk, channel);
|
|
ConstProcessContext<Sample> context (_buf, n, 1);
|
|
if (n < _max_chunksize) {
|
|
context().set_flag (ProcessContext<Sample>::EndOfInput);
|
|
}
|
|
interleaver->input (channel)->process (context);
|
|
|
|
if (n == 0) {
|
|
std::cerr << "AnalysisGraph::analyze_region read zero samples\n";
|
|
break;
|
|
}
|
|
}
|
|
x += n;
|
|
_frames_read += n;
|
|
Progress (_frames_read, _frames_end);
|
|
if (_canceled) {
|
|
return;
|
|
}
|
|
}
|
|
_results.insert (std::make_pair (region->name(), analyser->result ()));
|
|
}
|
|
|
|
void
|
|
AnalysisGraph::analyze_range (boost::shared_ptr<Route> route, boost::shared_ptr<AudioPlaylist> pl, const std::list<AudioRange>& range)
|
|
{
|
|
const uint32_t n_audio = route->n_inputs().n_audio();
|
|
|
|
for (std::list<AudioRange>::const_iterator j = range.begin(); j != range.end(); ++j) {
|
|
|
|
interleaver.reset (new Interleaver<Sample> ());
|
|
interleaver->init (n_audio, _max_chunksize);
|
|
chunker.reset (new Chunker<Sample> (_max_chunksize));
|
|
analyser.reset (new Analyser (48000.f, n_audio, _max_chunksize, (*j).length()));
|
|
|
|
interleaver->add_output(chunker);
|
|
chunker->add_output (analyser);
|
|
|
|
framecnt_t x = 0;
|
|
while (x < j->length()) {
|
|
framecnt_t chunk = std::min (_max_chunksize, (*j).length() - x);
|
|
framecnt_t n = 0;
|
|
for (uint32_t channel = 0; channel < n_audio; ++channel) {
|
|
n = pl->read (_buf, _mixbuf, _gainbuf, (*j).start + x, chunk, channel);
|
|
|
|
ConstProcessContext<Sample> context (_buf, n, 1);
|
|
if (n < _max_chunksize) {
|
|
context().set_flag (ProcessContext<Sample>::EndOfInput);
|
|
}
|
|
interleaver->input (channel)->process (context);
|
|
}
|
|
x += n;
|
|
_frames_read += n;
|
|
Progress (_frames_read, _frames_end);
|
|
if (_canceled) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
std::string name = string_compose (_("%1 (%2..%3)"), route->name(),
|
|
Timecode::timecode_format_sampletime (
|
|
(*j).start,
|
|
_session->nominal_frame_rate(),
|
|
100, false),
|
|
Timecode::timecode_format_sampletime (
|
|
(*j).start + (*j).length(),
|
|
_session->nominal_frame_rate(),
|
|
100, false)
|
|
);
|
|
_results.insert (std::make_pair (name, analyser->result ()));
|
|
}
|
|
}
|